📄 main.c
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{
va_list ap;
char string[256];
va_start(ap,fmt);
vsprintf(string,fmt,ap);
Uart_SendString(ch,string);
va_end(ap);
}
//***************************************************************************
/****************************************************************************
【功能说明】定时器初始化，让PE7、6、5、4输出PWM信号
****************************************************************************/
void Timer_Pwm(void)
{
rPCONE = 0xaa6b;
//PE8－P0的引脚功能依次为：ENDIAN TOUT4、3、2、1、0 RXD0 TXD0 FOUT
rPUPE |= 0xf0; //TOUT4、3、2、1、0设置成不上拉，其他引脚上拉
rTCFG0 = 0x28f8f8f; //死区长度为2; Prescaler0/1/2=8f,8f,8f
//定时器输入时钟频率计算公式 = MCLK/{prescaler+1}/{divider value}
rTCFG1 = 0x0; // Interrupt; Devider value = 1/2
//定时器时钟 = (MCLK/prescaler+1)/2
rTCNTB0 = 20000; //决定TOUT 0引脚PWM输出信号的频率
rTCNTB1 = 32000; //决定TOUT 1引脚PWM输出信号的频率
rTCNTB2 = 43000; //决定TOUT 2引脚PWM输出信号的频率
rTCNTB3 = 53000; //决定TOUT 3引脚PWM输出信号的频率
rTCNTB4 = 64000; //决定TOUT 4引脚PWM输出信号的频率
rTCMPB0 = 12000; //决定TOUT 0引脚PWM输出高电平的信号宽度(rTCMPB0<rTCNTB0)
rTCMPB1 = 18000; //决定TOUT 1引脚PWM输出高电平的信号宽度(rTCMPB1<rTCNTB1)
rTCMPB2 = 25000; //决定TOUT 2引脚PWM输出高电平的信号宽度(rTCMPB2<rTCNTB2)
rTCMPB3 = 28000; //决定TOUT 3引脚PWM输出高电平的信号宽度(rTCMPB3<rTCNTB3)
rTCMPB4 = 36000; //决定TOUT 4引脚PWM输出高电平的信号宽度(rTCMPB4<rTCNTB4)
// rTCON = 0xaaaa0a; //自动重装,输出取反关闭,更新TCNTBn、TCMPBn,死区控制器关闭
// rTCON = 0x999909; //开始PWM输出(不使用死区控制器，上升沿会非常陡峭，是标准矩形波)
// rTCON = 0xeeee0e; //自动重装,输出取反打开,更新TCNTBn、TCMPBn,死区控制器关闭
// rTCON = 0xdddd0d; //开始PWM输出(不使用死区控制器，上升沿会非常陡峭，是标准矩形波)
// rTCON = 0xaaaa1a; //自动重装,输出取反关闭,更新TCNTBn、TCMPBn,死区控制器打开
// rTCON = 0x999919; //开始PWM输出（使用死区控制器，上升沿会变得平滑，适用于功率器件控制）
//Delay(7500); //延时若干个100us
rTCON = 0xaaaa0a; //自动重装,输出取反关闭,更新TCNTBn、TCMPBn,死区控制器关闭
rTCON = 0x999900; //停止蜂鸣器的叫声
// rTCON = 0x0; //停止定时器
rPCONE = 0xaa6b; //
//PE8－P0的引脚功能依次为：ENDIAN TOUT4、3、2、1 OUTPUT RXD0 TXD0 FOUT
}
//***************************************************************************
/****************************************************************************
【功能说明】让PE7输出占空比可以数控的PWM信号，经平滑滤波后用作DAC输出
****************************************************************************/
void Tout5_Pwm(void)
{
U8 m,n;
for(m = 0; m < 0xff; m++)
{
rTCMPB4 = m; //决定TOUT 4引脚PWM输出高电平的信号宽度(rTCMPB4<rTCNTB4)
//rTCON = 0xaaaa0a; //自动重装,输出取反关闭,更新TCNTBn、TCMPBn,死区控制器关闭
//rTCON = 0x999900; //停止蜂鸣器的叫声
for(n = 0; n < 50;) n++;
}
}
//***************************************************************************
/****************************************************************************
【功能说明】液晶模块控制器初始化，外接DMF50081(320×240)液晶模块
****************************************************************************/
void Lcd_Init(void)
{
rPCOND=0xaaaa;
rLCDCON1=(2)|(INVFRAME<<2)|(INVLINE<<3)|(INVCLK<<4)|(1<<5)|(MVAL_USED<<7)|(1<<8)|(1<<10)|(CLKVAL_SL<<12);
//下降沿装载视频数据,禁止视频输出,LCD FIFO清空;行、帧信号取反;
//4位单扫描模式;WDLY=8clk,WLH=8clk,CLKVAL_SL=38
rLCDCON2=(239)|(79<<10)|(10<<21);
//垂直点数为240，水平点数320=(80字)，LINEBLANK=10
rLCDSADDR1= (0x0<<27) | ( ((U32)Bmp>>22)<<21 ) | M5D((U32)Bmp>>1);
// 黑白模式, LCDBANK, LCDBASEU
rLCDSADDR2= (1<<29) | (M5D((U32)Bmp + ((320/8)*(240)))>>1) | (MVAL<<21);
rLCDSADDR3= (320/16) | ( 0<<9 );
rLCDCON1=(1)|(INVFRAME<<2)|(INVLINE<<3)|(INVCLK<<4)|(1<<5)|(MVAL_USED<<7)|(1<<8)|(1<<10)|(CLKVAL_SL<<12);
}
//***************************************************************************
/****************************************************************************
【功能说明】液晶显示屏全屏填充某一个8位二进制数
****************************************************************************/
void Lcd_Fill(U8 m)
{
U16 i;
for(i = 0; i < 9600; i++) Bmp[i] = m;
}
//***************************************************************************
/****************************************************************************
【功能说明】实时时钟初始化
****************************************************************************/
void Rtc_Init(void)
{
rRTCCON = 0x01; //RTC读写使能，选择BCD时钟、计数器，无复位，1/32768
rBCDYEAR = RTC_YEAR0; //年
rBCDMON = RTC_MONTH0; //月
rBCDDAY = RTC_DAY0; //日
rBCDDATE = RTC_DATE0; //星期
rBCDHOUR = RTC_HOUR0; //小时
rBCDMIN = RTC_MIN0; //分
rBCDSEC = RTC_SEC0; //秒
}
//***************************************************************************
/****************************************************************************
【功能说明】显示实时时钟
****************************************************************************/
void Display_Rtc(void)
{
U16 year;
U8 month,day,weekday,hour,min,sec;
U8 m,n;
rRTCCON = 0x01; //RTC读写使能，选择BCD时钟、计数器，无复位，1/32768
year = 2000 + rBCDYEAR;
month = rBCDMON;
m = month>>4; n = month&0x0f;
month = m*10 + n; //BCD码转十进制
day = rBCDDAY;
m = day>>4; n = day&0x0f;
day = m*10 + n; //BCD码转十进制
weekday = rBCDDATE;
hour = rBCDHOUR;
m = hour>>4; n = hour&0x0f;
hour = m*10 + n; //BCD码转十进制
min = rBCDMIN;
m = min>>4; n = min&0x0f;
min = m*10 + n; //BCD码转十进制
sec = rBCDSEC;
m = sec>>4; n = sec&0x0f;
sec = m*10 + n; //BCD码转十进制
rRTCCON = 0x00; //RTC读写禁止(降低功率消耗)，选择BCD时钟、计数器，无复位，1/32768
Uart_Printf(0,"Date：/%02d/%02d/%04d %02d:%02d:%02d\n",month,day,year,hour,min,sec);
}
//***************************************************************************
/****************************************************************************
【功能说明】实时时钟定时报警
****************************************************************************/
void Rtc_Alarm(void)
{
rALMYEAR = RTC_YEAR1 ; //年
rALMMON = RTC_MONTH1; //月
rALMDAY = RTC_DAY1; //日
rALMHOUR = RTC_HOUR1; //小时
rALMMIN = RTC_MIN1; //分
rALMSEC = RTC_SEC1; //秒
rRTCALM=0x7f; //全局警报使能控制，年、月、日、星期、时分秒警报使能控制
}
//***************************************************************************
/****************************************************************************
【功能说明】模数转换初始化
****************************************************************************/
void ADC_Init(void)
{
rCLKCON = rCLKCON | (1<<12);
rADCCON = 0x1|(0<<2);
Delay(100);
rADCPSR = 10;
}
//***************************************************************************
/****************************************************************************
【功能说明】ADC某一通道进行转换，返回转换的数据
****************************************************************************/
U16 Read_Adc(unsigned char ain)
{
int i;
rADCCON = 0x1|(ain<<2); //设置AD转换通道
while(rADCCON & 0x1); //避免标志FLAG错误
while(!(rADCCON & 0x40)); //等待AD转换结束
for(i = 0; i < rADCPSR; i++); //避免第二次标志FLAG错误
return rADCDAT; //返回AD转换值
}
//***************************************************************************
#define delay Delay
#define BASE ((volatile unsigned char *)(0x60a0000))
void readreg()
{
unsigned char c[]={0x21,0x41,0xa1,0xe1};
int i,j;
volatile unsigned char *p =(volatile unsigned char *)(BASE);
{
for (i=0; i<4; i++) {
*(volatile unsigned char *)(p) = c[i];
Uart_Printf(0,"\nReg%c:",'A'+i);
for (j=0;j<16;j++) {
if (j&1) {
Uart_Printf(0,"%02X ",(int)(*(volatile unsigned char *)(p+j+0x20-1)));
} else {
Uart_Printf(0,"%02X ",(int)(*(volatile unsigned char *)(p+j)));
}
}
Uart_Printf(0,"\n");
}
}
}
//
// Init the net controller
// NET base is 0x300
// CPU 8019as
// A1 A1
// A2 A2
// A3 A3
// A4 A4
// A5 A0
//
int Net_Init()
{
//
// Reset MAC
//
*(BASE+0x1e) = *(BASE+0x1e + 0x20);
Delay(60);
//
// Set power status & msic
//
*(BASE+0x00) = 0xc1;
*(BASE+0x20) = 0xc0;
*(BASE+0x04) = 0x80;
*(BASE+0x24) = 0x00;
*(BASE+0x06) = 0x70;
*(BASE+0x26) = 0xFF;
//
// Write MAC
//
*(BASE+0x00) = 0x41;
*(BASE+0x20) = 'H';
*(BASE+0x02) = 'E';
*(BASE+0x22) = 'L';
*(BASE+0x04) = 'L';
*(BASE+0x24) = 'O';
*(BASE+0x06) = '!';
return 1;
}
typedef (*FUNC)(void);
int Burn(void);
/****************************************************************************
The main function
****************************************************************************/
void Main(void)
{
U32 *p;
U32 *q;
U32 i;
FUNC fp;
char c;
rSYSCFG = CACHECFG; //8K cache
//Disable I/O cache
rNCACHBE0 = 0xc0002000;
*(volatile short *)(0x6080000) = 0x48EB;
Port_Init(); //IO initialization
Lcd_Init(); //LCD initialization
Isr_Init(); //ISR initialization
Net_Init();
//Change the bard
Uart0_Init(0,115200);
Uart1_Init(0,115200);
Uart_Printf(0,"\n\n\n");
Uart_Printf(0,"*******************************\n");
Uart_Printf(0,"* Welcome to S3C44B0X *\n");
Uart_Printf(0,"* Strong Embedded Studio *\n");
Uart_Printf(0,"* www.8800.org *\n");
Uart_Printf(0,"* (2003-2004) *\n");
Uart_Printf(0,"*******************************\n\n");
Uart_Printf(0,"Boot to uClinux (Y/N)?");
c = 0;
while (Uart_GetKey(0));
do {
c = Uart_GetKey(0);
} while (!c) ;
if (c=='Y' || c=='y') {
Uart_Printf(0,"\n\nuClinux boot loader...\n");
//
// Copy kernel
//
p = (U32*)0x0020000;
q = (U32*)0xC008000;
for (i=0;i<((0xD0000)>>2);i++) {
*q++ = *p ++;
}
//
// Copy RomFs
//
p = (U32*)0x0100000;
q = (U32*)0xC700000;
for (i=0;i<((0xD0000)>>2);i++) {
*q++ = *p ++;
}
//
// Transfer to kernel
//
fp = (FUNC)0xc008000;
(*fp)();
}
Uart_Printf(0,"\n\nBurn Flash (Y/N)?");
do {
c = Uart_GetKey(0);
} while (!c) ;
if (c=='Y' || c=='y' ) {
int i=0,j=0;
while (1) {
Uart_Printf(0,"\n\nEnter password:");
while (i<6) {
do {
c = Uart_GetKey(0);
if (!c) c = Uart_GetKey(1);
} while (!c) ;
i++;
j+=c;
Uart_Printf(0,"%c",c);
}
//
// The password is 123456
// Disable cache for FLASH
//
if (j==309) {
Uart_Printf(0,"\n\n");
rNCACHBE0 =0x20000000;
Burn();
}
Uart_Printf(0,"\nPassword Error!");
i = 0;
j = 0;
}
}
Uart_Printf(0,"\n\n");
while(1)
{
Uart_Printf(0,"\nThis is a test routine");
}
}
//***************************************************************************
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